1
|
Xin Y, Liu Z, Yang C, Dong C, Chen F, Liu K. Smart antimicrobial system based on enzyme-responsive high methoxyl pectin-whey protein isolate nanocomplex for fresh-cut apple preservation. Int J Biol Macromol 2023; 253:127064. [PMID: 37748593 DOI: 10.1016/j.ijbiomac.2023.127064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/23/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
The increase in pectin methylesterase (PME) activity on fresh-cut apple surface can smartly trigger the controlled release of bactericidal agents encapsulated within intelligent responsive Pickering emulsions. In this study, we developed a PME-responsive nanocomplex (W-H-II) to stabilize Pickering emulsion containing thyme essential oil (TEO), preserving fresh-cut apples. W-H-II, formed by heat-induced whey protein isolate (WPI) and high methoxyl pectin (HMP) (pH 4.5, 85 °C, 15 min, WPI:HMP ratio 1:2), exhibited good pH stability due to the stabilizing effects of hydrophobic, hydrogen bonding, and electrostatic interactions. The presence of PME triggered the demethylation of HMP within W-H-II, conferring PME response characteristics. Subsequently, a bacteriostasis experiment with pectinase-producing Bacillus subtilis provided evidence of PME-triggered TEO release from W-H-II-stabilized Pickering emulsion. Furthermore, microscopy techniques were employed to verify the demulsification behavior of the emulsion when PME activity ranged from 0.25 to 2.50 U mL-1. Finally, the PME-responsive TEO Pickering emulsion effectively preserved fresh-cut apples. Stored for 6 days at 5 °C and 10 °C, as the PME activity on the apple surface increased, the decay rate of the coated group was 0 %, with a total colony count below 3.0 log CFU g-1. This study introduces a novel intelligent preservation strategy for storing fresh-cut apples.
Collapse
Affiliation(s)
- Ying Xin
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Zhenzhen Liu
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Chenhao Yang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Chen Dong
- College of Biological Engineering, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
| | - Fusheng Chen
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
| | - Kunlun Liu
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
| |
Collapse
|
2
|
Cogoi L, Marrassini C, Martin EMS, Alonso MR, Filip R, Anesini C. Inhibition of Glycation End Products Formation and Antioxidant Activities of Ilex paraguariensis: comparative study of fruit and leaves extracts. J Pharmacopuncture 2023; 26:338-347. [PMID: 38162469 PMCID: PMC10739477 DOI: 10.3831/kpi.2023.26.4.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/06/2023] [Accepted: 11/19/2023] [Indexed: 01/03/2024] Open
Abstract
Objectives Ilex paraguariensis (Aquifoleaceae) is cultivated to produce "yerba mate". Due to its nutritional, energizing, hypoglycemic and antioxidant effects, it is used in the elaboration of food, pharmaceuticals, and cosmetics. The oxidative stress related to protein glycation and production of advanced glycation end products (AGEs) leads to the development of several diseases. The objective of this work was to compare the antioxidant and anti-AGEs activity of a decoction of fruits (F) and leaves (L). Methods The antioxidant activity was assayed by the DPPH assay and the inhibition of egg yolk lipid peroxidation (ILP), and anti-AGEs activity, through the inhibition of the formation of fructosamine (IF), β-amyloid (Iβ), protein carbonylation (IC) and AGEs (IA). Polyphenols were quantified by HPLC. Results Maximum response ± SEM For F 0.01 µg/mL IF = 42 ± 4%, IC = 17 ± 2% and for 10 µg/mL IA = 38 ± 4%, Iβ = 67 ± 7%. For L 0.1 µg/mL IF = 35 ± 2%, IC = 19 ± 2% and for 100 µg/mL IA = 26 ± 3%, Iβ = 63.04 ± 2%. The DPPH IC50 = 134.8 ± 14 µg/mL for F and 34.67 ± 3 µg/mL for L. The ILP IC50 = 512.86 ± 50 µg/mL for F and 154.8 ± 15 µg/mL for L. By HPLC L presented the highest amounts of flavonoids and caffeoylquinic acids. F and L showed strong anti-AGEs activity, affecting the early stages of glycation at low concentrations and the late stages of glycation at high concentrations. The highest activity for both F and L was seen in the IF and Iβ. F presented the highest anti-AGEs potency. L presented the highest antioxidant potency, which was related to the highest content of polyphenols. Conclusion The fruits of I. paraguariensis could be a source of antioxidant and anti-AGEs compounds to be used with medicinal purposes or as functional food.
Collapse
Affiliation(s)
- Laura Cogoi
- Pharmacognosy Unit, Department of Pharmacology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
- Institute of Chemistry and Drug Metabolism (IQUIMEFA), CONICET-University of Buenos Aires, Buenos Aires, Argentina
| | - Carla Marrassini
- Pharmacognosy Unit, Department of Pharmacology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
- Institute of Chemistry and Drug Metabolism (IQUIMEFA), CONICET-University of Buenos Aires, Buenos Aires, Argentina
| | - Elina Malen Saint Martin
- Pharmacognosy Unit, Department of Pharmacology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
- Institute of Chemistry and Drug Metabolism (IQUIMEFA), CONICET-University of Buenos Aires, Buenos Aires, Argentina
| | - María Rosario Alonso
- Institute of Chemistry and Drug Metabolism (IQUIMEFA), CONICET-University of Buenos Aires, Buenos Aires, Argentina
| | - Rosana Filip
- Pharmacognosy Unit, Department of Pharmacology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - Claudia Anesini
- Pharmacognosy Unit, Department of Pharmacology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
- Institute of Chemistry and Drug Metabolism (IQUIMEFA), CONICET-University of Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
3
|
Panda A, Sabnam K, De S, Dasgupta S. Non-enzymatic glycation of human angiogenin: Effects on enzymatic activity and binding to hRI and DNA. Biochimie 2022; 208:151-159. [PMID: 36592684 DOI: 10.1016/j.biochi.2022.12.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
The effects of non-enzymatic glycation on the structural and functional properties of human angiogenin (hAng) have been investigated with respect to the formation of advanced glycated end products (AGEs), on prolonged treatment with d-Glucose, d-Fructose and d-Ribose at 37 °C. Fluorescence studies show the formation of fluorescent AGEs which exhibit emission maxima at 406 nm and 435 nm. Glycation of hAng with ribose leads to the maximum loss of its functional characteristic properties, as compared to fructose and glucose, along with the formation of higher oligomers. An increase in the incubation time results in the formation of higher oligomers with a concomitant decrease in the ribonucleolytic activity. The increase in the hydrodynamic radii of the glycated samples compared to native hAng is indicative of structural perturbations. The ribonucleolytic activity and the DNA binding ability of glycated hAng has been investigated by an agarose gel-based assay. Glycated hAng was unable to bind with human placental ribonuclease inhibitor (hRI), otherwise known to form one of the strongest protein-protein interaction systems with an affinity in the femtomolar range.
Collapse
Affiliation(s)
- Atashi Panda
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Kabira Sabnam
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Soumya De
- School of Bioscience, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| |
Collapse
|
4
|
Gupta A, Khursheed M, Arif Z, Badar A, Alam K. Methylglyoxal-induces multiple stable changes in human serum albumin before forming nephrotoxic advanced glycation end-products: Injury demonstration in human embryonic kidney cells. Int J Biol Macromol 2022; 214:252-263. [PMID: 35716786 DOI: 10.1016/j.ijbiomac.2022.06.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/02/2022] [Accepted: 06/12/2022] [Indexed: 11/05/2022]
Abstract
The minor fraction of methylglyoxal that is not metabolized in healthy humans reacts with macromolecules to form AGEs. In diabetics, the formation of MG is accelerated; its level may be enhanced multifold. The glyoxalase enzymes responsible for the regular and effective clearance of excess methylglyoxal may become defective in diabetes mellitus leading to its retention in cells and plasma. The methylglyoxal-modified-HSA was prepared, characterised by multiple biophysical techniques and biochemical (s) and its damaging effect was examined on embryonic kidney cell line HEK 293. The UV results showed hyperchromicity in MG-modified-HSA while nitroblue tetrazolium and fluorescence data suggested AGEs formation in comparison to control HSA. Upward shift of negative peaks in CD suggested reduction in α-helicity. Accelerated mobility and diffused broad bands observed in native and SDS polyacrylamide gel, respectively suggest neutralization of some of the positive charges on MG-modified-HSA as well as generation of cross-links. As observed by trypan blue assay, MTT, LDH activity assay, acridine orange, propidium iodide, ethidium bromide, 4',6-diamidino-2-phenylindole (DAPI) staining and ROS measurements, the MG-HSA AGEs caused damage to human embryonic kidney cells. The data suggest that MG-HSA AGEs may trigger powerful inflammatory responses at cellular level which might set the stage for nephrotoxicity in diabetics.
Collapse
Affiliation(s)
- Akankcha Gupta
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India
| | - Manal Khursheed
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India
| | - Zarina Arif
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India
| | - Asim Badar
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India
| | - Khursheed Alam
- Department of Biochemistry, Jawaharlal Nehru Medical College, Faculty of Medicine, Aligarh Muslim University, Aligarh, U.P., India.
| |
Collapse
|
5
|
Serum Albumin: A Multifaced Enzyme. Int J Mol Sci 2021; 22:ijms221810086. [PMID: 34576249 PMCID: PMC8466385 DOI: 10.3390/ijms221810086] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/06/2023] Open
Abstract
Human serum albumin (HSA) is the most abundant protein in plasma, contributing actively to oncotic pressure maintenance and fluid distribution between body compartments. HSA acts as the main carrier of fatty acids, recognizes metal ions, affects pharmacokinetics of many drugs, provides the metabolic modification of some ligands, renders potential toxins harmless, accounts for most of the anti-oxidant capacity of human plasma, and displays esterase, enolase, glucuronidase, and peroxidase (pseudo)-enzymatic activities. HSA-based catalysis is physiologically relevant, affecting the metabolism of endogenous and exogenous compounds including proteins, lipids, cholesterol, reactive oxygen species (ROS), and drugs. Catalytic properties of HSA are modulated by allosteric effectors, competitive inhibitors, chemical modifications, pathological conditions, and aging. HSA displays anti-oxidant properties and is critical for plasma detoxification from toxic agents and for pro-drugs activation. The enzymatic properties of HSA can be also exploited by chemical industries as a scaffold to produce libraries of catalysts with improved proficiency and stereoselectivity for water decontamination from poisonous agents and environmental contaminants, in the so called “green chemistry” field. Here, an overview of the intrinsic and metal dependent (pseudo-)enzymatic properties of HSA is reported to highlight the roles played by this multifaced protein.
Collapse
|
6
|
The Influence of Oxidative Stress on Serum Albumin Structure as a Carrier of Selected Diazaphenothiazine with Potential Anticancer Activity. Pharmaceuticals (Basel) 2021; 14:ph14030285. [PMID: 33806875 PMCID: PMC8005128 DOI: 10.3390/ph14030285] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/05/2021] [Accepted: 03/18/2021] [Indexed: 12/20/2022] Open
Abstract
Albumin is one of the most important proteins in human blood. Among its multiple functions, drug binding is crucial in terms of drug distribution in human body. This protein undergoes many modifications that are certain to influence protein activity and affect its structure. One such reaction is albumin oxidation. Chloramine T is a strong oxidant. Solutions of human serum albumin, both non-modified and modified by chloramine T, were examined with the use of fluorescence, absorption and circular dichroism (CD) spectroscopy. 10H-3,6-diazaphenothiazine (DAPT) has anticancer activity and it has been studied for the first time in terms of binding with human serum albumin—its potential as a transporting protein. Using fluorescence spectroscopy, in the presence of dansylated amino acids, dansyl-l-glutamine (dGlu), dansyl-l-proline (dPro), DAPT binding with two main albumin sites—in subdomain IIA and IIIA—has been evaluated. Based on the conducted data, in order to measure the stability of DAPT complexes with human (HSA) and oxidized (oHSA) serum albumin, association constant (Ka) for ligand-HSA and ligand-oHSA complexes were calculated. It has been presumed that oxidation is not an important issue in terms of 10H-3,6-diazaphenothiazine binding to albumin. It means that the distribution of this substance is similar regardless of changes in albumin structure caused by oxidation, natural occurring in the organism.
Collapse
|
7
|
Liu J, Yang Z, Cheng Y, Wu Q, He Y, Li Q, Cao X. Eriodictyol and naringenin inhibit the formation of AGEs: An in vitro and molecular interaction study. J Mol Recognit 2019; 33:e2814. [DOI: 10.1002/jmr.2814] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/31/2019] [Accepted: 09/04/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Jianli Liu
- School of Life ScienceLiaoning University Shenyang PR China
| | - Zhijun Yang
- School of Life ScienceLiaoning University Shenyang PR China
| | - Ye Cheng
- School of Life ScienceLiaoning University Shenyang PR China
| | - Qiong Wu
- College of ChemistryLiaoning University Shenyang PR China
| | - Yin He
- School of Life ScienceLiaoning University Shenyang PR China
| | - Qijiu Li
- School of Life ScienceLiaoning University Shenyang PR China
| | - Xiangyu Cao
- School of Life ScienceLiaoning University Shenyang PR China
| |
Collapse
|
8
|
Singh IR, Mitra S. Interaction of chlorpropamide with serum albumin: Effect on advanced glycated end (AGE) product fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:569-577. [PMID: 30189383 DOI: 10.1016/j.saa.2018.08.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/17/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Carrier proteins like bovine or human serum albumin (BSA and HSA, respectively) are prone to glycation as compared to the other available proteins. In this study, reducing sugars such as l-arabinose (ara), d-(-) galactose (gal) and d-(-) fructose (fru) were used to create model glycated serum albumins and binding ability of these with well-known antidiabetic drug chlorpropamide (CPM) was monitored. Fluorescence quenching experiment revealed that interaction of CPM with native as well as glycated albumins undergoes through a ground state complex formation. CPM binds strongly to glycated HSA with arabinose (gHSAara) as compared to other glycated systems and to the native proteins. CPM interacts through Van der Waals and hydrogen bonding interaction to glycated BSA by d-(-) fructose (gBSAfru) and also with native HSA; whereas, it's interaction with BSA and others glycated systems like gBSAara, gBSAgal and gHSAara occurs primarily through hydrophobic interaction. CPM showed an enhancement in the production of the advanced glycated end products (AGE) in all the glycated proteins. The difference in the binding capability of CPM to differently glycated albumins could be a major model to understand the drug carrying capacity of the glycated serum albumins.
Collapse
Affiliation(s)
- Imocha Rajkumar Singh
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong 793 022, India
| | - Sivaprasad Mitra
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong 793 022, India.
| |
Collapse
|
9
|
Sindhu J, Mayank M, Bhasin AKK, Kaur N, Singh N, Bhasin KK. Disaggregation-induced ESIPT: a novel approach towards development of sensors for hyperglycemic condition. NEW J CHEM 2019. [DOI: 10.1039/c8nj05756g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An oxazolonapthoimidazo[1,2-a]pyridine-based fluorescence probe ONIP1 was designed and synthesized via multicomponent reaction. ONIP1 was able to distinguish human serum albumin (HSA) from and glycated-HSA via modulation of AIEE- and ESIPT-based dual channel emission properties.
Collapse
Affiliation(s)
- Jayant Sindhu
- Department of Chemistry
- Punjab University
- Chandigarh
- India
| | - Mayank Mayank
- Department of Chemistry
- Indian Institute of Technology Ropar
- India
| | | | - Navneet Kaur
- Department of Chemistry
- Punjab University
- Chandigarh
- India
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- India
| | - K. K. Bhasin
- Department of Chemistry
- Punjab University
- Chandigarh
- India
| |
Collapse
|
10
|
Dos Santos CHC, Talpo TC, Motta BP, Kaga AK, Baviera AM, Castro RN, da Silva VC, de Sousa-Junior PT, Wessjohann L, de Carvalho MG. New compounds of Siolmatra brasiliensis and inhibition of in vitro protein glycation damage. Fitoterapia 2018; 133:109-119. [PMID: 30605782 DOI: 10.1016/j.fitote.2018.12.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 12/23/2018] [Accepted: 12/29/2018] [Indexed: 12/12/2022]
Abstract
Twenty compounds were isolated from the hydroethanolic extract of the stems of Siolmatra brasiliensis, five flavonoids, two lignans, one glucosyl phytosterol, seven nor-cucurbitacins, one new phenolic derivative named siolmatrin (1) and four new dammarane-type saponins named siolmatrosides II-V (2-5), the structures of the compounds were assigned by means of 1D and 2D NMR experiments and HRESIMS of the natural compounds and some acetyl derivatives. The effects of the crude hydroethanolic extract (SbExt) and the ethyl acetate fraction (SbEtAc) of Siolmatra brasiliensis stems on the formation of advanced glycation end-products (AGEs) were also investigated. In the in vitro model system of protein glycation using bovine serum albumin (BSA) and glucose, addition of SbExt or SbEtAc inhibited the formation of fluorescent AGEs, in parallel to minor levels of fructosamine (SbEtAc) and markers of tyrosine and tryptophan oxidation (SbExt and SbEtAc). Protein crosslinking, which represents changes of late stages of protein glycation, was reduced in the presence of SbExt and SbEtAc. Siolmatra brasiliensis stems seem to be a promising source of compounds having ability to prevent glycoxidation changes, arising as an interesting option to be studied as a complementary therapy for complications of diabetes.
Collapse
Affiliation(s)
- Carlos Henrique Corrêa Dos Santos
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil.
| | - Tassiana Cristina Talpo
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Bruno Pereira Motta
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Anderson Kiyoshi Kaga
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil
| | - Amanda Martins Baviera
- Departamento de Análises Clínicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, UNESP, Araraquara 14800-903, SP, Brazil.
| | - Rosane Nora Castro
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil
| | | | | | - Ludger Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Halle (Saale) D-06120, Germany
| | - Mário Geraldo de Carvalho
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal Rural do Rio de Janeiro, Seropédica 23897-000, RJ, Brazil
| |
Collapse
|
11
|
Penezić AZ, Aćimović JM, Pavićević ID, Jovanović VB, Takić M, Mandić LM. The interplay between copper(II), human serum albumin, fatty acids, and carbonylating agent interferes with Cys 34 thiol reactivity and copper binding. J Biol Inorg Chem 2018; 24:61-70. [PMID: 30456476 DOI: 10.1007/s00775-018-1628-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 11/13/2018] [Indexed: 12/12/2022]
Abstract
Cys34 thiol group of human serum albumin (HSA) represents major plasma antioxidant. Its reactivity is influenced by multiple factors. The influence of fatty acids (FA; saturated, mono, and poly unsaturated acids from fish oil) binding to HSA, on copper(II) binding affinity and Cys34 thiol group accessibility/reactivity, in the presence of carbonylation agent (methylglyoxal, MG) was examined. HSA-copper(II) content, thiol group reactivity, and HSA carbonylation level were monitored spectrophotometrically. Changes in HSA were followed by fluorescence spectroscopy and native PAG electrophoresis. FA/HSA molar ratio was screened by GC. Together, binding of copper(II) ions and FA to HSA increase the reactivity of Cys34 thiol group (depending on the type of FA), with constant contribution of copper(II) ions of one-third. Carbonylation of FA-HSA-Cu(II) complexes caused a decrease in the Cys34 thiol group content, accompanied by a decrease in the content of HSA-bound copper. The carbonylation level of guanidine groups was not affected by FAs and copper(II) binding. Fluorescent emission spectra of FA-HSA-Cu(II)-MG complexes showed conformational changes in HSA molecule. Although binding of fatty acids and copper ions caused a significant increase in the thiol group reactivity, Cys34 thiol from FA-HSA-Cu(II) complexes reacted with MG in smaller extent than expected, probably as a consequence of conformational changes introduced by carbonylation. Increase in the percentage of reacted-free thiol groups with MG (due to FA and copper binding) may not seem to be very significant, but it is very important in complex biological systems, where catalytic metal is present.
Collapse
Affiliation(s)
- Ana Z Penezić
- Institute for the Application of Nuclear Energy, INEP, Banatska 31b, 11000, Belgrade, Serbia.
| | - Jelena M Aćimović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Ivan D Pavićević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Vesna B Jovanović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Marija Takić
- Laboratory for Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Ljuba M Mandić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| |
Collapse
|
12
|
Duan D, Tu Z, Wang H, Sha X. A comparative analysis of the antigenicity and the major components formed from the glucose/ovalbumin model system under microwave irradiation and conventional heating. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- DengLe Duan
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang China
| | - ZongCai Tu
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang China
- College of Life Science Jiangxi Normal University Nanchang China
| | - Hui Wang
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang China
| | - Xiaomei Sha
- College of Life Science Jiangxi Normal University Nanchang China
| |
Collapse
|
13
|
Prasanna G, Jing P. Spectroscopic and molecular modelling studies on glycation modified bovine serum albumin with cyanidin-3-O-glucoside. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:708-716. [PMID: 29982163 DOI: 10.1016/j.saa.2018.06.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 06/16/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
In this study, we report the glycation mediated effect of bovine serum albumin (BSA) on the molecular interaction mechanism of cyanidin-3-O-glucoside (C3G) by molecular modelling, Uv-visible spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy, and circular dichroism spectroscopy studies. The structures of advanced glycation end-products (AGEs) modified BSA were modelled, energy minimized and analyzed for binding affinity by molecular docking studies using Autodock Vina. Glycation experiments are carried out using glucose and methylglyoxal to validate the molecular modelling results on the interaction of modified BSA with C3G. The modified structures were characterized by reduction in the binding pocket volume, surface, depth, hydrophobicity, and hydrogen bond donors/acceptors. Arg-194, Arg-196, Arg-198, Arg-217, Arg-409, Lys-114, Lys-116, Lys-204, Lys 221, and Lys-439 were found to be crucial in the context of glycation of BSA. TEM images represented the formation of unique globular aggregates in the event of glycation. Uv-visible spectroscopic studies showed the formation of new chromophores between 300 and 400 nm in the event of glycation. Fluorescence quenching was observed in a differential manner in the presence of C3G on glycation modified BSA. Circular dichroism studies suggested the loss of helical structure and formation of β-sheeted structure upon glycation, but subsequent C3G binding has resulted in the increase towards helical structure. Our findings suggested that drug binding affinity has been certainly impaired due to glycation and subsequent AGE modification. Arg-p modification has more austere impact on the structure and would affect the binding properties. We conclude that C3G had differential modulation of binding properties on glycated BSA which can help to protect the stability and bioavailability that has been impaired due to glycation mediated structural changes.
Collapse
Affiliation(s)
- Govindarajan Prasanna
- Research Center for Food Safety and Nutrition, Key Lab of Urban Agriculture (South), Bor S. Luh Food Safety Research Center, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Pu Jing
- Research Center for Food Safety and Nutrition, Key Lab of Urban Agriculture (South), Bor S. Luh Food Safety Research Center, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
14
|
Bhat SA, Bhat WF, Arif H, Afsar M, Sohail A, Khan MS, Rehman MT, Khan RA, Bano B. Glycation induced conformational transitions in cystatin proceed to form biotoxic aggregates: A multidimensional analysis. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:989-1000. [PMID: 29964207 DOI: 10.1016/j.bbapap.2018.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/25/2018] [Accepted: 06/27/2018] [Indexed: 11/29/2022]
Abstract
Hyperglycaemic conditions facilitate the glycation of serum proteins which may have predisposition to aggregation and thus lead to complications. The current study investigates the glycation induced structural and functional modifications of chickpea cystatin (CPC) as well as biological toxicity of the modified protein forms, using CPC-glucose as a model system. Several structural intermediates were formed during the incubation of CPC with glucose (day 4, 8, 12, & 16) as revealed by circular dichroism (CD), altered intrinsic fluorescence, and high ANS binding. Further incubation of CPC with glucose (day 21) formed abundant β structures as revealed by Fourier transform infrared spectroscopy and CD analysis which may be due to the aggregation of protein. High thioflavin T fluorescence intensity and increased Congo red absorbance together with enhanced turbidity and Rayleigh scattering by this modified form confirmed the aggregation. Electron microscopy finally provided the valid physical authentication about the presence of aggregate structures. Functional inactivation of glucose incubated CPC was also observed with time. Single cell electrophoresis of lymphocytes and plasmid nicking assays in the presence of modified CPC showed the DNA damage which confirmed its biological toxicity. Hence, our study suggests that glycation of CPC not only leads to structural and functional alterations in proteins but also to biotoxic AGEs and aggregates.
Collapse
Affiliation(s)
- Sheraz Ahmad Bhat
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Waseem Feeroze Bhat
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Hussain Arif
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Afsar
- CSIR, Central Drug Research Institute, Lucknow 226031, India
| | - Aamir Sohail
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | | | | | | | - Bilqees Bano
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
| |
Collapse
|
15
|
Liu J, Xing X, Jing H. Differentiation of glycated residue numbers on heat-induced structural changes of bovine serum albumin. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:2168-2175. [PMID: 28960315 DOI: 10.1002/jsfa.8701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/29/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Glycation is an approach in dealing with heat-induced protein aggregation. The relationship between degree of glycation and heat-induced structural changes is still unclear. The present work investigates the effect of different numbers and sites of glycated residues on heat-induced structural changes of bovine serum albumin (BSA). Glycation of BSA was carried out with xylose (Xyl) and galactose (Gal) by Maillard reaction. Glycated residues in BSA were identified by liquid chromatography-tandem mass spectrometry, and heat-induced protein structural changes were characterized by fluorescence emission and synchronous fluorescence spectra, 8-anilino-1-naphthalenesulfonic acid fluorescence, Fourier transform infrared (FTIR) and circular dichroism (CD) spectra. RESULTS The numbers of glycated residues were 2 and 13 when BSA was glycated by Gal (BSA - Gal) and Xyl (BSA - Xyl), respectively. There were shifts of maximum wavelengths and decreases in fluorescence intensities for both intrinsic and extrinsic fluorescences; shifts of FTIR amide I, III, and A bands; and decrease or increase of CD band intensities, α-helix and β-sheet percentages when BSA was heated. Glycation with Gal or Xyl restrained in similar degrees those changes, including fluorescence wavelengths, amide I band, CD band intensities, and α-helix and β-sheet percentages. CONCLUSION Xyl glycated more residues than Gal, while their effects were similar in restraining heat-induced BSA structural changes. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jianlei Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, PR China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Xiaojuan Xing
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Hao Jing
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, PR China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| |
Collapse
|
16
|
Ahmed A, Shamsi A, Khan MS, Husain FM, Bano B. Methylglyoxal induced glycation and aggregation of human serum albumin: Biochemical and biophysical approach. Int J Biol Macromol 2018; 113:269-276. [PMID: 29481950 DOI: 10.1016/j.ijbiomac.2018.02.137] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/15/2018] [Accepted: 02/22/2018] [Indexed: 11/15/2022]
Abstract
Serum protein glycation and formation of advanced glycation end products (AGEs) correlates with many diseases viz. diabetes signifying the importance of studying the glycation pattern of serum proteins. In our present study, methylglyoxal was investigated for its effect on the structure of human serum albumin (HSA); exploring the formation of AGEs and aggregates of HSA. The analytical tools employed includes intrinsic and extrinsic fluorescence, UV spectroscopy, far UV circular dichroism, Thioflavin T fluorescence, congo red binding, polyacrylamide gel electrophoresis (PAGE). UV and fluorescence spectroscopy revealed the structural transition of native HSA evident by new peaks and increased absorbance in UV spectra and quenched fluorescence in the presence of MG. Far UV CD spectroscopy revealed MG induced secondary structural alteration evident by reduced α-helical content. AGEs formation was confirmed by AGEs specific fluorescence. Increased ThT fluorescence and CR absorbance of 10mM MG incubated HSA suggests that glycated HSA results in the formation of aggregates of HSA. SEM and TEM were reported to have an insight of these aggregates. Molecular docking was also utilized to see site specific interaction of MG-HSA. This study is clinically significant as HSA is a clinically relevant protein which plays a crucial role in many diseases.
Collapse
Affiliation(s)
- Azaj Ahmed
- Department of Biochemistry, F/O Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Anas Shamsi
- Department of Biochemistry, F/O Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Mohd Shahnawaz Khan
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, 2460, Riyadh 11451, Saudi Arabia
| | - Bilqees Bano
- Department of Biochemistry, F/O Life Sciences, Aligarh Muslim University, Aligarh, India.
| |
Collapse
|
17
|
Shin SM, Song SH, Lee JW, Kwak MK, Kang SO. Methylglyoxal synthase regulates cell elongation via alterations of cellular methylglyoxal and spermidine content in Bacillus subtilis. Int J Biochem Cell Biol 2017; 91:14-28. [PMID: 28807600 DOI: 10.1016/j.biocel.2017.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 07/14/2017] [Accepted: 08/08/2017] [Indexed: 01/03/2023]
Abstract
Methylglyoxal regulates cell division and differentiation through its interaction with polyamines. Loss of their biosynthesizing enzyme causes physiological impairment and cell elongation in eukaryotes. However, the reciprocal effects of methylglyoxal and polyamine production and its regulatory metabolic switches on morphological changes in prokaryotes have not been addressed. Here, Bacillus subtilis methylglyoxal synthase (mgsA) and polyamine biosynthesizing genes encoding arginine decarboxylase (SpeA), agmatinase (SpeB), and spermidine synthase (SpeE), were disrupted or overexpressed. Treatment of 0.2mM methylglyoxal and 1mM spermidine led to the elongation and shortening of B. subtilis wild-type cells to 12.38±3.21μm (P<0.05) and 3.24±0.73μm (P<0.01), respectively, compared to untreated cells (5.72±0.68μm). mgsA-deficient (mgsA-) and -overexpressing (mgsAOE) mutants also demonstrated cell shortening and elongation, similar to speB- and speE-deficient (speB- and speE-) and -overexpressing (speBOE and speEOE) mutants. Importantly, both mgsA-depleted speBOE and speEOE mutants (speBOE/mgsA- and speEOE/mgsA-) were drastically shortened to 24.5% and 23.8% of parental speBOE and speEOE mutants, respectively. These phenotypes were associated with reciprocal alterations of mgsA and polyamine transcripts governed by the contents of methylglyoxal and spermidine, which are involved in enzymatic or genetic metabolite-control mechanisms. Additionally, biophysically detected methylglyoxal-spermidine Schiff bases did not affect morphogenesis. Taken together, the findings indicate that methylglyoxal triggers cell elongation. Furthermore, cells with methylglyoxal accumulation commonly exhibit an elongated rod-shaped morphology through upregulation of mgsA, polyamine genes, and the global regulator spx, as well as repression of the cell division and shape regulator, FtsZ.
Collapse
Affiliation(s)
- Sang-Min Shin
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Sung-Hyun Song
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jin-Woo Lee
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Min-Kyu Kwak
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
| | - Sa-Ouk Kang
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
| |
Collapse
|
18
|
Effect of Temperature on Tolbutamide Binding to Glycated Serum Albumin. Molecules 2017; 22:molecules22040569. [PMID: 28362348 PMCID: PMC6154730 DOI: 10.3390/molecules22040569] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/20/2017] [Accepted: 03/27/2017] [Indexed: 12/17/2022] Open
Abstract
Glycation process occurs in protein and becomes more pronounced in diabetes when an increased amount of reducing sugar is present in bloodstream. Glycation of protein may cause conformational changes resulting in the alterations of its binding properties even though they occur at a distance from the binding sites. The changes in protein properties could be related to several pathological consequences such as diabetic and nondiabetic cardiovascular diseases, cataract, renal dysfunction and Alzheimer's disease. The experiment was designed to test the impact of glycation process on sulfonylurea drug tolbutamide-albumin binding under physiological (T = 309 K) and inflammatory (T = 311 K and T = 313 K) states using fluorescence and UV-VIS spectroscopies. It was found in fluorescence analysis experiments that the modification of serum albumin in tryptophanyl and tyrosyl residues environment may affect the tolbutamide (TB) binding to albumin in subdomain IIA and/or IIIA (Sudlow's site I and/or II), and also in subdomains IB and IIB. We estimated the binding of tolbutamide to albumin described by a mixed nature of interaction (specific and nonspecific). The association constants Ka (L∙mol-1) for tolbutamide at its high affinity sites on non-glycated albumin were in the range of 1.98-7.88 × 10⁴ L∙mol-1 (λex = 275 nm), 1.20-1.64 × 10⁴ L∙mol-1 (λex = 295 nm) and decreased to 1.24-0.42 × 10⁴ L∙mol-1 at λex = 275 nm (T = 309 K and T = 311 K) and increased to 2.79 × 10⁴ L∙mol-1 at λex = 275 nm (T = 313 K) and to 4.43-6.61 × 10⁴ L∙mol-1 at λex = 295 nm due to the glycation process. Temperature dependence suggests the important role of van der Waals forces and hydrogen bonding in hydrophobic interactions between tolbutamide and both glycated and non-glycated albumin. We concluded that the changes in the environment of TB binding of albumin in subdomain IIA and/or IIIA as well as in subdomains IB and IIB influence on therapeutic effect and therefore the studies of the binding of tolbutamide (in diabetes) to transporting protein under glycation that refers to the modification of a protein are of great importance in pharmacology and biochemistry. This information may lead to the development of more effective drug therapy in people with diabetes.
Collapse
|
19
|
Liu W, Wei Z, Ma H, Cai A, Liu Y, Sun J, DaSilva NA, Johnson SL, Kirschenbaum LJ, Cho BP, Dain JA, Rowley DC, Shaikh ZA, Seeram NP. Anti-glycation and anti-oxidative effects of a phenolic-enriched maple syrup extract and its protective effects on normal human colon cells. Food Funct 2017; 8:757-766. [PMID: 28112327 DOI: 10.1039/c6fo01360k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxidative stress and free radical generation accelerate the formation of advanced glycation endproducts (AGEs) which are linked to several chronic diseases. Published data suggest that phenolic-rich plant foods, show promise as natural anti-AGEs agents due to their anti-oxidation capacities. A phenolic-enriched maple syrup extract (MSX) has previously been reported to show anti-inflammatory and neuroprotective effects but its anti-AGE effects remain unknown. Therefore, herein, we investigated the anti-glycation and anti-oxidation effects of MSX using biochemical and biophysical methods. MSX (500 μg mL-1) reduced the formation of AGEs by 40% in the bovine serum albumin (BSA)-fructose assay and by 30% in the BSA-methylglyoxal (MGO) assay. MSX also inhibited the formation of crosslinks typically seen in the late stage of glycation. Circular dichroism and differential scanning calorimeter analyses demonstrated that MSX maintained the structure of BSA during glycation. In the anti-oxidant assays, MSX (61.7 μg mL-1) scavenged 50% of free radicals (DPPH assay) and reduced free radical generation by 20% during the glycation process (electron paramagnetic resonance time scan). In addition, the intracellular levels of hydrogen peroxide induced reactive oxygen species were reduced by 27-58% with MSX (50-200 μg mL-1) in normal/non-tumorigenic human colon CCD-18Co cells. Moreover, in AGEs and MGO challenged CCD-18Co cells, higher cellular viabilities and rapid extracellular signal-regulated kinase (ERK) phosphorylation were observed in MSX treated cells, indicating its protective effects against AGEs-induced cytotoxicity. Overall, this study supports the biological effects of MSX, and warrants further investigation of its potential as a dietary agent against diseases mediated by oxidative stress and inflammation.
Collapse
Affiliation(s)
- Weixi Liu
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA. and Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - Zhengxi Wei
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Ang Cai
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Yongqiang Liu
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Jiadong Sun
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Nicholas A DaSilva
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | - Shelby L Johnson
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| | | | - Bongsup P Cho
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Joel A Dain
- Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA
| | - David C Rowley
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Zahir A Shaikh
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Navindra P Seeram
- Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
| |
Collapse
|
20
|
Raghav A, Ahmad J, Alam K. Impact of glycation on structural and antioxidant function of human serum albumin: Relevance in diabetic complications. Diabetes Metab Syndr 2016; 10:96-101. [PMID: 26725383 DOI: 10.1016/j.dsx.2015.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
AIM Non-enzymatic glycation impairs the structural and functional characterstics of human serum albumin (HSA) native conformation. Prolonged hyperglycemia causes cross links formation in proteins that may contribute to progression of diabetic complications. METHODS HSA (20μM) was incubated with different concentration of d-glucose100, 200, 300 and 400mg/dl for a period of 40 days in phosphate buffer saline (20mM pH=7.4) under sterile conditions. Incubated samples were extensively dialyzed and structural changes were analyzed by far and near UV circular dichroism spectra measurement. Fructosamine assay with nitroblue tetrazolonium was performed to confer isomerisation between glucose and protein. Aggregations of the glycated product (AGEs) formed during reduction of nitrobluetetrazolium dye were evaluated by transmission electron microscopy. Crosslinks aggregates were investigated by in-situ Congo red binding assay. Red blood cells hemolysis test was performed to decipher the antioxidant activity of albumin samples. RESULTS Fructosamine content in glycated albumin demonstrates the non-enzymatic addition of glucose to HSA and confers the formation of monoformazone (marker of glycation). Significant changes were found in the glycated samples of HSA compared to native (unmodified) in far and near UV circular dichroism. Transmission electron microscopy, Congo red staining, showed the formation of crosslink's aggregated mass in glycated HSA. Glycation of albumin reduces the antioxidant capacity of native albumin confirmed by red blood cells hemolysis test. CONCLUSION The finding of present study brings new evidences on the detrimental alterations of on albumin vital functions after non-enzymatic glycation with glucose. These results may emphasize the albumin associated diabetic complications under glycemic range of diabetes mellitus.
Collapse
Affiliation(s)
- Alok Raghav
- Rajiv Gandhi Centre for Diabetes and Endocrinology, J.N Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Jamal Ahmad
- Rajiv Gandhi Centre for Diabetes and Endocrinology, J.N Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India.
| | - Khursheed Alam
- Department of Biochemistry, J.N Medical College, Aligarh Muslim University
| |
Collapse
|
21
|
Awasthi S, Saraswathi NT. Non-enzymatic glycation mediated structure–function changes in proteins: case of serum albumin. RSC Adv 2016. [DOI: 10.1039/c6ra08283a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Albumin, a major plasma protein with extraordinary ligand binding properties, transports various ligands ranging from drugs, hormones, fatty acids, and toxins to different tissues and organs in the body.
Collapse
Affiliation(s)
- Saurabh Awasthi
- Molecular Biophysics Lab
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - N. T. Saraswathi
- Molecular Biophysics Lab
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| |
Collapse
|
22
|
Singha Roy A, Ghosh P, Dasgupta S. Glycation of human serum albumin alters its binding efficacy towards the dietary polyphenols: a comparative approach. J Biomol Struct Dyn 2015; 34:1911-8. [DOI: 10.1080/07391102.2015.1094749] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Atanu Singha Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Pooja Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| |
Collapse
|
23
|
Tupe R, Kulkarni A, Adeshara K, Sankhe N, Shaikh S, Dalal S, Bhosale S, Gaikwad S. Zinc inhibits glycation induced structural, functional modifications in albumin and protects erythrocytes from glycated albumin toxicity. Int J Biol Macromol 2015; 79:601-10. [DOI: 10.1016/j.ijbiomac.2015.05.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/09/2015] [Accepted: 05/12/2015] [Indexed: 12/27/2022]
|
24
|
Tupe RS, Sankhe NM, Shaikh SA, Phatak DV, Parikh JU, Khaire AA, Kemse NG. Aqueous extract of some indigenous medicinal plants inhibits glycation at multiple stages and protects erythrocytes from oxidative damage-an in vitro study. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2015; 52:1911-23. [PMID: 25829572 PMCID: PMC4375206 DOI: 10.1007/s13197-013-1211-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/07/2013] [Accepted: 11/12/2013] [Indexed: 01/12/2023]
Abstract
Azadirachta indica, Emblica officinalis, Syzygium cumini and Terminalia bellirica are common in Indian system of traditional medicine for the prevention of diabetes and its complications. The aim of the present study was to comprehensively and comparatively investigate the antiglycation potential of these plant extracts at multiple stages and their possible protective effect against glycated albumin mediated toxicity to erythrocytes. Antiglycation activities of these plant extracts was measured by co-incubation of plant extract with bovine serum albumin-fructose glycation model. The multistage glycation markers- fructosamines (early stage), protein carbonyls (intermediate stage) and AGEs (late stage) are investigated along with measurement of thiols and β aggregation of albumin using amyloid-specific dyes-Congo red and Th T. Protection of erythrocytes from glycated albumin induced toxicity by these plant extracts was assessed by measuring erythrocytes hemolysis, lipid peroxidation, reduced glutathione and intracellular antioxidant capacity. Total phenolics, reducing power and antioxidant activities of the plant extracts were also measured. In vitro glycation assays showed that plant extracts exerted site specific inhibitory effects at multiple stages, with T. bellirica showing maximum attenuation. In erythrocytes, along with the retardation of glycated albumin induced hemolysis and lipid-peroxidation, T. bellirica considerably maintained cellular antioxidant potential. Significant positive correlations were observed between erythrocyte protection parameters with total phenolics. These plant extracts especially T. bellirica prevents glycation induced albumin modifications and subsequent toxicity to erythrocytes which might offer additional protection against diabetic vascular complications.
Collapse
Affiliation(s)
- Rashmi S. Tupe
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Neena M. Sankhe
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Shamim A. Shaikh
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Devyani V. Phatak
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Juhi U. Parikh
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Amrita A. Khaire
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| | - Nisha G. Kemse
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, 411046 India
| |
Collapse
|
25
|
Li W, Gao H, Mu H, Chen H, Fang X, Zhou Y, Tao F. Three different active aldehydes induce the production of advanced lipoxidation end products upon incubation with bovine serum albumin. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400339] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenjuan Li
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing Jiangsu, P. R. China
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Haiyan Gao
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing Jiangsu, P. R. China
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Honglei Mu
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Hangjun Chen
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Xiangjun Fang
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Yongjun Zhou
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| | - Fei Tao
- Food Science Institute, Zhejiang Academy of Agricultural Science / Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province; Hangzhou Zhejiang P.R. China
| |
Collapse
|
26
|
Tan D, Zhang Y, Chen L, Liu L, Zhang X, Wu Z, Bai B, Ji S. Decreased glycation and structural protection properties of γ-glutamyl-S-allyl-cysteine peptide isolated from fresh garlic scales (Allium sativum L.). Nat Prod Res 2015; 29:2219-22. [PMID: 25631559 DOI: 10.1080/14786419.2014.1003065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The antiglycative effect of γ-glutamyl-S-allyl-cysteine (GSAC) peptide isolated from fresh garlic scales was investigated in the bovine serum albumin (BSA)/glucose system. GSAC inhibited the increase of fluorescence intensity at about 440 nm in a concentration-dependent manner and reduced reacted free lysine side chains by 10.9%, 24.7% and 37.7%, as the GSAC concentrations increased from 0.1 to 2.5 mg mL(-1). Glycation-specific decline in BSA α-helix content (from 61.3% to 55.6%) and increase in β-sheet (from 2.1% to 5.4%) were prevented by GSAC (2.5 mg mL(-1)) in vitro, implying its stabilisation effect. GSAC treatment (2.5 mg mL(-1)) suppressed protein crosslinking to form polymers. Additionally, GSAC (10, 40, and 160 μg mL(-1)) showed radical-scavenging and metal-chelating capacities. In conclusion, GSAC has an antiglycative effect, which may involve its radical-scavenging and metal-chelating capacities.
Collapse
Affiliation(s)
- Dehong Tan
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Yao Zhang
- b College of Fine Art and Design, Shenyang Normal University , Shenyang Liaoning Province 110034 , P.R. China
| | - Lulu Chen
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Ling Liu
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Xuan Zhang
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Zhaoxia Wu
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Bing Bai
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| | - Shujuan Ji
- a College of Food Science, Shenyang Agricultural University , Shenyang , Liaoning Province 110866 , P.R. China
| |
Collapse
|
27
|
Abstract
In vivo modification of proteins by molecules with reactive carbonyl groups leads to intermediate and advanced glycation end products (AGE). Glucose is a significant glycation reagent due to its high physiological concentration and poorly controlled diabetics show increased albumin glycation. Increased levels of glycated and AGE-modified albumin have been linked to diabetic complications, neurodegeneration, and vascular disease. This review discusses glycated albumin formation, structural consequences of albumin glycation on drug binding, removal of circulating AGE by several scavenger receptors, as well as AGE-induced proinflammatory signaling through activation of the receptor for AGE. Analytical methods for quantitative detection of protein glycation and AGE formation are compared. Finally, the use of glycated albumin as a novel clinical marker to monitor glycemic control is discussed and compared to glycated hemoglobin (HbA1c) as long-term indicator of glycemic status.
Collapse
|
28
|
Characterisation of the influences of aspirin-acetylation and glycation on human plasma proteins. J Proteomics 2015; 114:125-35. [DOI: 10.1016/j.jprot.2014.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 11/06/2014] [Accepted: 11/10/2014] [Indexed: 12/29/2022]
|
29
|
Penezić AZ, Jovanović VB, Pavićević ID, Aćimović JM, Mandić LM. HSA carbonylation with methylglyoxal and the binding/release of copper(ii) ions. Metallomics 2015; 7:1431-8. [DOI: 10.1039/c5mt00159e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
HSA carbonylation in vitro (with MG) and in vivo (diabetes) leads to copper(ii) binding affinity decrease and copper(ii) release from copper–HSA complexes depending mainly on the redox state of the Cys34-SH group.
Collapse
Affiliation(s)
- Ana Z. Penezić
- Department of Biochemistry
- Faculty of Chemistry
- University of Belgrade
- Belgrade 11158, Serbia
| | - Vesna B. Jovanović
- Department of Biochemistry
- Faculty of Chemistry
- University of Belgrade
- Belgrade 11158, Serbia
| | - Ivan D. Pavićević
- Department of Biochemistry
- Faculty of Chemistry
- University of Belgrade
- Belgrade 11158, Serbia
| | - Jelena M. Aćimović
- Department of Biochemistry
- Faculty of Chemistry
- University of Belgrade
- Belgrade 11158, Serbia
| | - Ljuba M. Mandić
- Department of Biochemistry
- Faculty of Chemistry
- University of Belgrade
- Belgrade 11158, Serbia
| |
Collapse
|
30
|
Frahm GE, Smith DGS, Kane A, Lorbetskie B, Cyr TD, Girard M, Johnston MJW. Determination of supplier-to-supplier and lot-to-lot variability in glycation of recombinant human serum albumin expressed in Oryza sativa. PLoS One 2014; 9:e109893. [PMID: 25299339 PMCID: PMC4192584 DOI: 10.1371/journal.pone.0109893] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 09/06/2014] [Indexed: 01/11/2023] Open
Abstract
The use of different expression systems to produce the same recombinant human protein can result in expression-dependent chemical modifications (CMs) leading to variability of structure, stability and immunogenicity. Of particular interest are recombinant human proteins expressed in plant-based systems, which have shown particularly high CM variability. In studies presented here, recombinant human serum albumins (rHSA) produced in Oryza sativa (Asian rice) (OsrHSA) from a number of suppliers have been extensively characterized and compared to plasma-derived HSA (pHSA) and rHSA expressed in yeast (Pichia pastoris and Saccharomyces cerevisiae). The heterogeneity of each sample was evaluated using size exclusion chromatography (SEC), reversed-phase high-performance liquid chromatography (RP-HPLC) and capillary electrophoresis (CE). Modifications of the samples were identified by liquid chromatography-mass spectrometry (LC-MS). The secondary and tertiary structure of the albumin samples were assessed with far U/V circular dichroism spectropolarimetry (far U/V CD) and fluorescence spectroscopy, respectively. Far U/V CD and fluorescence analyses were also used to assess thermal stability and drug binding. High molecular weight aggregates in OsrHSA samples were detected with SEC and supplier-to-supplier variability and, more critically, lot-to-lot variability in one manufactures supplied products were identified. LC-MS analysis identified a greater number of hexose-glycated arginine and lysine residues on OsrHSA compared to pHSA or rHSA expressed in yeast. This analysis also showed supplier-to-supplier and lot-to-lot variability in the degree of glycation at specific lysine and arginine residues for OsrHSA. Both the number of glycated residues and the degree of glycation correlated positively with the quantity of non-monomeric species and the chromatographic profiles of the samples. Tertiary structural changes were observed for most OsrHSA samples which correlated well with the degree of arginine/lysine glycation. The extensive glycation of OsrHSA from multiple suppliers may have further implications for the use of OsrHSA as a therapeutic product.
Collapse
Affiliation(s)
- Grant E. Frahm
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Daryl G. S. Smith
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Anita Kane
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Barry Lorbetskie
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Terry D. Cyr
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Michel Girard
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Michael J. W. Johnston
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
- * E-mail:
| |
Collapse
|
31
|
Adrover M, Mariño L, Sanchis P, Pauwels K, Kraan Y, Lebrun P, Vilanova B, Muñoz F, Broersen K, Donoso J. Mechanistic insights in glycation-induced protein aggregation. Biomacromolecules 2014; 15:3449-62. [PMID: 25057908 DOI: 10.1021/bm501077j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Protein glycation causes loss-of-function through a process that has been associated with several diabetic-related diseases. Additionally, glycation has been hypothesized as a promoter of protein aggregation, which could explain the observed link between hyperglycaemia and the development of several aggregating diseases. Despite its relevance in a range of diseases, the mechanism through which glycation induces aggregation remains unknown. Here we describe the molecular basis of how glycation is linked to aggregation by applying a variety of complementary techniques to study the nonenzymatic glycation of hen lysozyme with ribose (ribosylation) as the reducing carbohydrate. Ribosylation involves a chemical multistep conversion that induces chemical modifications on lysine side chains without altering the protein structure, but changing the protein charge and enlarging its hydrophobic surface. These features trigger lysozyme native-like aggregation by forming small oligomers that evolve into bigger insoluble particles. Moreover, lysozyme incubated with ribose reduces the viability of SH-SY5Y neuroblastoma cells. Our new insights contribute toward a better understanding of the link between glycation and aggregation.
Collapse
Affiliation(s)
- Miquel Adrover
- Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Departament de Química, Universitat de les Illes Balears , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Indurthi VS, Leclerc E, Vetter SW. Calorimetric investigation of diclofenac drug binding to a panel of moderately glycated serum albumins. Eur J Pharm Sci 2014; 59:58-68. [DOI: 10.1016/j.ejps.2014.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 04/01/2014] [Accepted: 04/02/2014] [Indexed: 01/27/2023]
|
33
|
Bencharit S, Baxter SS, Carlson J, Byrd WC, Mayo MV, Border MB, Kohltfarber H, Urrutia E, Howard-Williams EL, Offenbacher S, Wu MC, Buse JB. Salivary proteins associated with hyperglycemia in diabetes: a proteomic analysis. MOLECULAR BIOSYSTEMS 2014; 9:2785-97. [PMID: 24056972 DOI: 10.1039/c3mb70196d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Effective monitoring of glucose levels is necessary for patients to achieve greater control over their diabetes. However, only about a quarter of subjects with diabetes who requires close serum glucose monitoring, regularly check their serum glucose daily. One of the potential barriers to patient compliance is the blood sampling requirement. Saliva and its protein contents can be altered in subjects with diabetes, possibly due to changes in glycemic control. We propose here that salivary proteomes of subjects with diabetes may be different based on their glycemic control as reflected in A1C levels. A total of 153 subjects with type 1 or 2 diabetes were recruited. Subjects in each type of diabetes were divided into 5 groups based on their A1C levels; <7, 7-8, 8-9, 9-10, >10. To examine the global proteomic changes associated with A1C, the proteomic profiling of pooled saliva samples from each group was created using label-free quantitative proteomics. Similar proteomic analysis for individual subjects (N=4, for each group) were then applied to examine proteins that may be less abundant in pooled samples. Principle component analysis (PCA) and cluster analysis (p<0.01 and p<0.001) were used to define the proteomic differences. We, therefore, defined the salivary proteomic changes associated with A1C changes. This study demonstrates that differences exist between salivary proteomic profiles in subjects with diabetes based on the A1C levels.
Collapse
Affiliation(s)
- Sompop Bencharit
- Department of Prosthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC 27599, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Effect of Non-Enzymatic Glycation on Cystatin: A Spectroscopic Study. J Fluoresc 2014; 24:1107-17. [DOI: 10.1007/s10895-014-1391-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 04/07/2014] [Indexed: 01/08/2023]
|
35
|
Kamal MA, Priyamvada S, Anbazhagan AN, Jabir NR, Tabrez S, Greig NH. Linking Alzheimer's disease and type 2 diabetes mellitus via aberrant insulin signaling and inflammation. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2014; 13:338-46. [PMID: 24074448 PMCID: PMC5947865 DOI: 10.2174/18715273113126660137] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 03/16/2013] [Accepted: 04/02/2013] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD) and type 2 diabetes mellitus (T2DM) are two progressive and devastating health disorders afflicting millions of people worldwide. The probability and incidence of both have increased considerably in recent years consequent to increased longevity and population growth. Progressively more links are being continuously found between inflammation and central nervous system disorders like AD, Parkinson's disease, Huntington's disease, motor neuron disease, multiple sclerosis, stroke, traumatic brain injury and even cancers of the nervous tissue. The depth of the relationship depends on the timing and extent of anti- or pro-inflammatory gene expression. Inflammation has also been implicated in T2DM. Misfolding and fibrillization (of tissue specific and/or non-specific proteins) are features common to both AD and T2DM and are induced by as well as contribute to inflammation and stress (oxidative/ glycation). This review appraises the roles of inflammation and abnormalities in the insulin signaling system as important shared features of T2DM and AD. The capacity of anti-cholinesterases in reducing the level of certain common inflammatory markers in particular if they may provide therapeutic potential to mitigate awry mechanisms leading to AD.
Collapse
Affiliation(s)
| | | | | | | | | | - Nigel H Greig
- Metabolomics & Enzymology Unit, Fundamental and Applied Biology Group, King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| |
Collapse
|
36
|
Bohlooli M, Moosavi-Movahedi A, F. Taghavi, Maghami P, Saboury A, Moosavi-Movahedi Z, Farhadi M, Hong J, Sheibani N, Habibi-Rezaei M. Investigation of thermal reversibility and stability of glycated human serum albumin. Int J Biol Macromol 2013; 62:358-64. [DOI: 10.1016/j.ijbiomac.2013.09.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 12/27/2022]
|
37
|
Nedić O, Rattan SIS, Grune T, Trougakos IP. Molecular effects of advanced glycation end products on cell signalling pathways, ageing and pathophysiology. Free Radic Res 2013; 47 Suppl 1:28-38. [PMID: 23692178 DOI: 10.3109/10715762.2013.806798] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Advanced glycation end-products (AGEs) are a heterogeneous group of compounds formed by the Maillard chemical process of non- enzymatic glycation of free amino groups of proteins, lipids and nucleic acids. This chemical modification of biomolecules is triggered by endogeneous hyperglycaemic or oxidative stress-related processes. Additionally, AGEs can derive from exogenous, mostly diet-related, sources. Considering that AGE accumulation in tissues correlates with ageing and is a hallmark in several age-related diseases it is not surprising that the role of AGEs in ageing and pathology has become increasingly evident. The receptor for AGEs (RAGE) is a single transmembrane protein being expressed in a wide variety of human cells. RAGE binds a broad repertoire of extracellular ligands and mediates responses to stress conditions by activating multiple signal transduction pathways being mostly responsible for acute and/or chronic inflammation. RAGE activation has been implicated in ageing as well as in a number of age-related diseases, including atherosclerosis, neurodegeneration, arthritis, stoke, diabetes and cancer. Here we present a synopsis of findings that relate to AGEs-reported implication in cell signalling pathways and ageing, as well as in pathology. Potential implications and opportunities for translational research and the development of new therapies are also discussed.
Collapse
Affiliation(s)
- O Nedić
- Institute for the Application of Nuclear Energy, University of Belgrade, Serbia
| | | | | | | |
Collapse
|
38
|
Structural alterations of human serum albumin caused by glycative and oxidative stressors revealed by circular dichroism analysis. Int J Mol Sci 2013; 14:10694-709. [PMID: 23702842 PMCID: PMC3709697 DOI: 10.3390/ijms140610694] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 04/22/2013] [Accepted: 05/02/2013] [Indexed: 12/29/2022] Open
Abstract
The aim of this work was to evaluate the ability of oxidative and glycative stressors to modify properties of human serum albumin (HSA) by analyzing markers of glycation (pentosidine) and oxidation (advanced oxidative protein products (AOPPs)) and assessing fluorescence and circular dichroism. HSA was incubated for up to 21 days with ribose, ascorbic acid (AA) and diethylenetriamine pentacetate (DTPA) in various combinations in order to evaluate influences of these substances on the structure of HSA. Ribose was included as a strong glycative molecule, AA as a modulator of oxidative stress, and DTPA as an inhibitor of metal-catalyzed oxidation. Ribose induced a significant increase in pentosidine levels. AA and DTPA prevented the accumulation of pentosidine, especially at later time points. Ribose induced a mild increase in AOPP formation, while AA was a strong inducer of AOPP formation. Ribose, in combination with AA, further increased the formation of AOPP. DTPA prevented the AA-induced generation of AOPP. Ribose was also a potent inducer of fluorescence at 335nm ex/385nm em, which is typical of pentosidine. AA and DTPA prevented this fluorescence. Circular dichroism showed complex results, in which AA and DTPA were strong modifiers of the percentages of the alpha-helical structure of HSA, while ribose affected the structure of HSA only at later time points.
Collapse
|
39
|
Trougakos IP, Sesti F, Tsakiri E, Gorgoulis VG. Non-enzymatic post-translational protein modifications and proteostasis network deregulation in carcinogenesis. J Proteomics 2013; 92:274-98. [PMID: 23500136 DOI: 10.1016/j.jprot.2013.02.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 02/19/2013] [Accepted: 02/27/2013] [Indexed: 12/25/2022]
Abstract
Organisms are constantly challenged by stressors and thus the maintenance of biomolecules functionality is essential for the assurance of cellular homeostasis. Proteins carry out the vast majority of cellular functions by mostly participating in multimeric protein assemblies that operate as protein machines. Cells have evolved a complex proteome quality control network for the rescue, when possible, or the degradation of damaged polypeptides. Nevertheless, despite these proteostasis ensuring mechanisms, new protein synthesis, and the replication-mediated dilution of proteome damage in mitotic cells, the gradual accumulation of stressors during aging (or due to lifestyle) results in increasingly damaged proteome. Non-enzymatic post-translational protein modifications mostly arise by unbalanced redox homeostasis and/or high glucose levels and may cause disruption of proteostasis as they can alter protein function. This outcome may then increase genomic instability due to reduced fidelity in processes like DNA replication or repair. Herein, we present a synopsis of the major non-enzymatic post-translation protein modifications and of the proteostasis network deregulation in carcinogenesis. We propose that activation of the proteostasis ensuring mechanisms in premalignant cells has tumor-preventive effects, whereas considering that over-activation of these mechanisms represents a hallmark of advanced tumors, their inhibition provides a strategy for the development of anti-tumor therapies. This article is part of a Special Issue entitled: Posttranslational Protein modifications in biology and Medicine.
Collapse
Affiliation(s)
- Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, University of Athens, Panepistimiopolis, Athens 15784, Greece.
| | | | | | | |
Collapse
|
40
|
Indurthi VS, Leclerc E, Vetter SW. Interaction between glycated serum albumin and AGE-receptors depends on structural changes and the glycation reagent. Arch Biochem Biophys 2012; 528:185-96. [DOI: 10.1016/j.abb.2012.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 10/03/2012] [Accepted: 10/06/2012] [Indexed: 10/27/2022]
|
41
|
Frahm GE, Cyr TD, Smith DGS, Walrond LD, Johnston MJW. Investigation of the Differences in Thermal Stability of Two Recombinant Human Serum Albumins with 1,2-Dipalmitoyl-sn-glycero-3-phosphocholine Liposomes by UV Circular Dichroism Spectropolarimetry. J Phys Chem B 2012; 116:4661-70. [DOI: 10.1021/jp2125729] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Grant E. Frahm
- Centre for
Vaccine Evaluation, Biologics and Genetic
Therapies Directorate, Health Canada, 251
Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| | - Terry D. Cyr
- Centre for
Vaccine Evaluation, Biologics and Genetic
Therapies Directorate, Health Canada, 251
Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| | - Daryl G. S. Smith
- Centre for
Vaccine Evaluation, Biologics and Genetic
Therapies Directorate, Health Canada, 251
Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| | - Lisa D. Walrond
- Centre for
Vaccine Evaluation, Biologics and Genetic
Therapies Directorate, Health Canada, 251
Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| | - Michael J. W. Johnston
- Centre for
Vaccine Evaluation, Biologics and Genetic
Therapies Directorate, Health Canada, 251
Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| |
Collapse
|